California Proposition 65: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. O-Ring, Metal Detectable Metal Detectable, Not X-Ray Detectable X-Ray Detectable, System of Measurement Inch, Cross Section Shape Rectangular, O-Ring Material Viton, Durometer (Hardness) Rating Medium Hard, Nominal Inside Dia. 1 1/2 in, Nominal Width 1/8 in, Actual Inside Dia. 1.4 in, Actual Width 0.139 in, Dash Number 222, Color Black, Durometer 75A, Nominal Outside Dia. 1 3/4 in, Actual Outside Dia. 1.762 in, Temp. Range -15 Degrees to 400 Degrees F, FDA Approved FDA Approved